How to plot smooth curve in matlab

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Awat
Awat 2016-10-24
编辑： MathWorks Support Team 2023-3-2
x=[0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 0.275 0.3 0.325 0.35 0.375 0.4 0.425 0.45 0.475 0.5 0.525 0.55 0.575 0.6 0.625 0.65 0.675 0.7 0.725 0.75 0.775 0.8 0.825 0.85 0.875 0.9 0.925 0.95 0.975 1 ]
y=[1.422 1.427 1.431 1.396 1.396 1.377 1.377 1.358 1.357 1.338 1.338 1.319 1.318 1.301 1.301 1.288 1.287 1.278 1.278 1.274 1.274 1.275 1.276 1.282 1.282 1.294 1.294 1.309 1.310 1.328 1.328 1.348 1.348 1.367 1.367 1.386 1.386 1.413 1.413 1.039 1.025]
  2 个评论
KSSV
KSSV 2016-10-24
What you want to do with it?
Awat
Awat 2016-10-24
I plot the data but this graph not smooth curve. I want to the smooth curve using Matlab.

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KSSV
KSSV 2016-10-24
编辑：MathWorks Support Team 2023-3-2
UPDATE:
Starting in R2017a, you can smooth noisy data using built in MATLAB functionality:
clc; clear all ;
x=[0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 0.275 0.3 0.325 0.35 0.375 0.4 0.425 0.45 0.475 0.5 0.525 0.55 0.575 0.6 0.625 0.65 0.675 0.7 0.725 0.75 0.775 0.8 0.825 0.85 0.875 0.9 0.925 0.95 0.975 1 ] ;
y=[1.422 1.427 1.431 1.396 1.396 1.377 1.377 1.358 1.357 1.338 1.338 1.319 1.318 1.301 1.301 1.288 1.287 1.278 1.278 1.274 1.274 1.275 1.276 1.282 1.282 1.294 1.294 1.309 1.310 1.328 1.328 1.348 1.348 1.367 1.367 1.386 1.386 1.413 1.413 1.039 1.025] ;
yi = smooth(y) ;
plot(x,y,'r')
hold on
plot(x,yi,'b') ;
  4 个评论
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Shaleena Manafudeen
Shaleena Manafudeen 2021-3-18
I tried to execute the same program in Matlab R2019b and obtained error as follows:-
Error in smooth (line 5)
yi = smooth(y) ;
John Nkor
John Nkor 2021-4-23
@Shaleena Manafudeen The error might suggest that you do not have the "Curve Fitting Toolbox" installed on as an add-ons app. To do this click on the apps tab > get more apps. Once the add-on Explore window opens, search for Curve Fitting Toolbox and install.

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Nandana Rajeev
Nandana Rajeev 2019-6-25
how can i plot neutrino ocsillation probability

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